CSS Gradients in IE9 on Elements with Rounded Borders

If you want to add some rounded borders to an element, and also to have a gradient on that element, you’ll notice in IE9 that your rounded borders have some background with corners below them.

Notice the background visible behind rounded borders. This will happen because of the standard gradients code for all browsers, which will look like that:

background: #f0b7a1;
background: url(data:image/svg+xml;base64,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);
background: -moz-linear-gradient(top,  #f0b7a1 0%, #8c3310 50%, #752201 51%, #bf6e4e 100%);
background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,#f0b7a1), color-stop(50%,#8c3310), color-stop(51%,#752201), color-stop(100%,#bf6e4e));
background: -webkit-linear-gradient(top,  #f0b7a1 0%,#8c3310 50%,#752201 51%,#bf6e4e 100%);
background: -o-linear-gradient(top,  #f0b7a1 0%,#8c3310 50%,#752201 51%,#bf6e4e 100%);
background: -ms-linear-gradient(top,  #f0b7a1 0%,#8c3310 50%,#752201 51%,#bf6e4e 100%);
background: linear-gradient(top,  #f0b7a1 0%,#8c3310 50%,#752201 51%,#bf6e4e 100%);
filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#f0b7a1', endColorstr='#bf6e4e',GradientType=0 );

Notice that FILTER is at the bottom. This is used for ie7 and 8, but it also adds some background for ie9. We need to get rid of it for ie9, and everything will be ok then.

Add a “gradient” class to all your elements that have a gradient, and add the following override to your HTML to complete the IE9 support:

<!--[if gte IE 9]>
  <style type="text/css">
    .gradient {
       filter: none;
    }
  </style>
<![endif]-->

It may be another class, or an asterisk as well.